Home / 131,813.33-181,902.11-71,383.79

Finding the Fourth Proportional to 131,813.33, 181,902.11 and 71,383.79

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Solution

The fourth proportional to 131,813.33, 181,902.11 and 71,383.79 is: 98,509.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,813.33 : 181,902.11 = 71,383.79 : x
  2. Step 2: Convert to fraction form
    131,813.33/181,902.11 = 71,383.79/x
  3. Step 3: Cross multiply
    131,813.33x = 181,902.11 × 71,383.79
  4. Step 4: Simplify right side
    131,813.33x = 12,984,862,020.80
  5. Step 5: Solve for x
    x = 12,984,862,020.80/131,813.33
  6. Step 6: Final answer
    x = 98,509.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.